Winding-reel for dynamo-electric-machine coils.



M. J. CLARK.

WINDING REEL FOR DYNAMO ELECTRIC MACHINE GOILS.

APPLICATION TILED MAR.27, 1912.

Patented Feb. 24, 1914.

2 SHEETS-SHEET 1.

M. J. CLARK.

WINDING REEL FOR DYNAMO ELECTRIC MACHINE GOILS.

APPLICATION FILED MAR.27, 1912.

1,088,1 27. Pafsented Feb. 24, 1914.

2 BHEBTSSHEET 2.

UNITED STATES PATENT OFFICE.

MAURICE J. CLARK, OF CHICAGO, ILLINOIS, ASSIGNOR TO NORTHWESTERN ELECTRIC COMPANY, OF CHICAGO, ILLINOIS.

WINDING-REEL FOR DYNAMO-ELECTRIC-MACHINE COILS.

Specification of Letters Patent.

Patented Feb. 24, 1914.

Application filed March 27, 1912. Serial No. 686,684.

To all whom it may concern:

Be it known that I, MAURICE J. CLARK, a

citizen of the United States of America, and a resident of Chicago, Cook county, Illinois, have invented-certain new and useful Improvements in WVinding-Reels for l)ynamo-Electric-Machine Coils, of which the following is a specification. This invention relates to devices for winding coils for dynamo-electric machines, which coils have heretofore been formed on a. forming block provided with grooves arranged to conform to the shape of the tin ished coil as it is to be used on the machine, and the invention is designed to provide a simple and comparatively inexpensive device which is capable of a considerable range of adjustment so as to have coils of various sizes and shapes formed thereon quickly and at a materially decreased expense.

The main objects of this invention are to provide an improved device for winding coils which are tobe used on dynamo-electric machines; to provide an improved construction and arrangement of the holding members on which the coil is formed; to provide improved means for adjusting the distance between the holding members; to provide improved means for adjusting the size of said holding members for the purpose of varying the thickness of the coils to be formed; to provide an improved construction of the holding members so as to insure the positive al'inement of the forming jaws; to provide improved means for rota ting certain jaws for the purpose of twisting portions of the coil; and to provide an improved construction of the holding members whereby they may be quickly dismantled when the coil is to be removed after having been formed.

An illustrative embodiment of this invention is shown in the accompanying drawings, in which Figure 1 is a plan view of a device constructed according to this invention. Figs. 2 and 3 are perspective views of different shaped coils which may be formed on the device. F ig. 4 is a sectional detail of one of the holding members taken on the line .\A of Fig. 1. Fig. 5 is a sectional elevation taken on the line 13-13 of Fig. 1.

Fig. 6 is a sectional elevation taken on the line CC of Fig. 1.

In the construction shown in the drawings, the supporting frame comprises a pair of frame members 1 and 2 and bars 3 and 4. The frame members 1 and 2 are rigidly secured together at right angles to each other by a. head 5 so as to provide the pairs of oppositely disposed arms 6 and 7 and 8 and 9. The head 5 has a threaded end 10 by which the device is secured to a rotary member. The bars 3 and 4 are slidably mounted on the arms 6 and 7 of the frame member 1 and their movement back and forth on said arms is controlled by the threaded shaft 11, which has threaded engagement therewith and which is retained by collars 12 in its bearing in an extension 13 of the head 5. Holding members 14 are slidably mounted on the bars 3 and 4 at opposite sides of the frame member 1 and holding members 15 are slidably mounted on the arms 8 and 9 of the frame member 2 at opposite sides of the frame member 1. The pairs of holding members 14 and 15 are respectively connected to the threaded shafts 16, 17 and 18 respectively mounted in the arms 3 and 4, and the frame member 2, being secured a ainst shifting therein by the collars 19. The threaded shafts 11, 16, 17 and 18 have both left and right-hand threads so that the rotation thereof causes the parts to which they are connected to move simultaneously toward and away from each other.

Each of the holding members 14 comprises a base part 20 which has a rectangular lock 21 arranged to slide in the opening in the bars 3 and 4 and has threaded engagement with its respective threaded shaft 16 or 17. The base part 20 is secured in position on its bar by means of the stud bolt 22 and washer 23. In the drawing each part 20 has integrally formed thereon the concentric cylindrical shoulders 24 and 25 of relatively difi'erent diameters, on which the jaws 26 and 27 are respectively carried.

The jaw 27 is in the form of a sector and has a threaded pin 28 adapted to be screwed into the end of the shoulder 25 and so arranged that when the pin has been screwed in its full distance, the abutting of the jaw 27 with the end of the shoulder 25 will cause the jaw to occupy the position as indicated in Fig. 1, in which position it coacts with the jaw 26 for gripping and forming the coil. The jaw 27 is provided with a crossarm 29 by which it is operated.

The jaw 26 is in the form of an internally threaded cap having threaded engagement with the shoulder 24, on which it is adjustable toward and away from the jaw 27. An internally threaded locking ring 30 is also mounted on the shoulder 24 inwardly of the jaw 26 by which the jaw is locked in any position. The peripheries of the jaw 26 and ring 30 are preferably knurled so that operation by hand is made easy. The holding members 14 are arranged on the arms 3 and 4 so that the jaws 26 and 27 are normally in alinement in a plane parallel with the plane of rotation of the device.

Each of the holding members 15 comprises a base part or post 31 carried on the square block 32, slidably mounted in the frame member 2 and adapted to have engagement with the threaded shaft 18. The base part 31 is held to the frame member 2 by the integral flange 33 and stud 34 and washer 35. A shaft 36 is rotatably mounted at the upper end of the base part 31 and carries a crosspiece 37, on which the flanged members or jaws 38 and 39 are mounted.

The jaw 38 is locked in position on the crosspiece 37 by means of a head 40 which is eccentrically carried on a stud 41 having threaded engagement with a tapped hole eccentrically located in the end of the crosspiece 37. The head 40 may be turned to a position indicated in the figures whereupon the jaw 38 is locked in a fixed position upon the crosspiece 37, or it may be turned to a position of registering alinement with respect to the crosspiece 37, whereupon the jaw 38 may be removed from the crosspiece. The crosspiece 37 and jaw 38 are respectively provided with co-acting key and keyway 42 whereby the jaw is secured against turning onthe crosspiece. The jaw 38 and head 40 are respectively provided with coacting shoulders 43 and 44 which serve to limit the rotation of the head 40 so as to stop the cross-arm 45 in a position to register with the keyway in the jaw 38 so as to permit the removal of said aw.

The jaw 39 is adjustable on the crosspiece 37 toward and away from the jaw 38 by means of a threaded rod or bolt 46, partially housed in the crosspiece 37 and having a bearing in the disk 47 secured at the end of the crosspiece as indicated in Fig. 6. There are no threads on the crosspiece 37 but the jaw 39 is threaded to co-act with the threaded rod 46 so that the turning of the rod in its bearing 47 by means of the arms 48 will cause the jaw to slide along the crosspiece 37 as determined by the direction of rotation of the bolt 46.

The shafts 36 have telescoping engagement with a shaft 49, rotatably mounted in the extension 13 which is cut away at 50 so as to expose the hole 51 into which a suitable operating rod is inserted for turning the shaft 49. The shaft 49 is suitably splined to the shaft 36 so as to cause rotation thereof when the shaft 49 is rotated. Each of the shafts 36 is provided with av pin which co-acts with a slot 53 in the base part 31 for determining the extent of rotation and longitudinal shifting of the shafts 36. The slots 53 are placed at an angle for the reason that when a coil is in position on the device and the jaws of the holding members 15 are partially rotated they are caused to move inwardly as they rotate through the relative shortening of the coil. Springs 54 normally urge the jaws 38 and 39 toward their outward limits as determined by the pin 52 and slot 53. The shafts 36 and the jaws which they carry may be locked in their normal position during the winding of the coil by means of wingheaded set screws 55.

The operation of the device is as follows: The device is secured to a rotary member, preferably one that is horizontally disposed. by screwing the threaded end 10 of the head 5 onto the end of said rotary member. The threaded shafts 11, 16, 17, and 18 are then turned to shift the respective holding members 14 and 15 to the positions necessitated for the forming of a coil of the desired size and shape. If a coil similar to the one shown in Fig. 2 is to be formed, the holding members 15 are shifted to a position inwardly of the holding members. 14. If, however, a coil is to be formed like the one shown in Fig. 3 the holding members 14 and 15 are shifted to similar positions as shown in the figures. In describing the operation of the device it will be done as it pertains to the formation of coils of a shape similar to the one shown in Fig. 3. since it will necessitate describing the complete operation of the entire device. it being obvious that the formation of coils similar to that shown in Fig. 2 does not necessitate the use or operation of the holding members 15. The jaws 27 of the holding members 14 and the jaws 38 of the holding members 15 are secured in their respective fixed positions. The jaws 26 are then adjusted toward or away from the jaws 27 as determined by the thickness of the coil to be formed and locked in such position by means of the locking ring 30. The jaws 39 of the holding members 15 are also shifted toward or away from the respective jaws 38 so that the space between said jaws is equal to that between the jaws 26 and 27 of the holding members 14. The shafts 36 and the jaws carried thereby are then locked in their normal positions by means of the setscrews 55. One end of the wire from which the coil is to be formed is temporarily attached to one of the holding members 15 and the device is set in rotation. The wire is held by the operator so as to be successively wound into the holding members until a coil having the desired number of convolutions has been formed. The rotation of the device is then stopped and the wire cut and the end suitably attached to the same holding member to which the other end of the wire is connected preparatory to further operating upon the coil. The set-screws are released and a suitable operating handle is inserted into the hole 51 of the shaft 49 and the shafts given a partial rotation. The rotation of the shafts 36 causesthe jaws 38 and 39 to bend the ends of the coil as shown, and during the rotation of the shafts 36 they are forced inwardly through the relative shortening of the coil, the pin 52 traveling along the slot 53 and limiting the amount of rotation as well as inward movement which the shaft is given. The ends of the coil being twisted it is then ready to be removed from the device. To accomplish this the jaws 27 are turned through an angle of 180 degrees, or they may be removed entirely if desired, and the jaws 38 are removed by turning the head 40 to their registering positions with the respective ends of the crosspiece 37. The coil may then be readily removed from the device whereupon the parts may be re-assembled for sub sequent use.

Although but one specific embodiment of this invention has been herein shown and described, it will be understood that numerous details of the construction shown may be altered or omitted without departing from the spirit of this invention as defined by the following claims:

I claim 1. In a device of the class described, the combination of a supporting frame, comprising a pair of frame members secured together at right angles, bars slidably'mounted on one of said frame members at opposite sides of and substantially parallel with the other said frame member, means operatively connected to said bars and adapted to shift the same toward and away from each other, holding members slidably mounted on said other frame member and said bars, and means operatively connected to said holding members and adapted to shift said members toward and away from each other, for the purpose specified.

2. In a device of the class described, the combination of a supporting frame, comprising a pair of frame members secured to gether at right angles, bars slidably mounted on one of said frame members at opposite sides of and substantially parallel with the other said frame member, means operatively connected to said bars and adapted to shift the same toward and away from each other, holding members slidably mounted on said other frame member and said bars at opposite sides of said one frame member, and means operatively connected to said holding members and adapted to shift said members toward and away from each other, for the purpose specified.

3. In a device of the class described, the combination of a supporting frame, a plurality of holding members slidably mounted on said frame, each of said holding members comprising a base part, a removable jaw adapted to be fixed on the end of said base part, and a second jaw supported on said base part inwardly of said first jaw and adjustable toward and away from said first jaw, and means operatively connected to said holding members adapted to shift said members toward and away from each other, for the purpose specified.

In a device of the class described, the combination of a supporting frame, a plurality of holding members slidably mounted on said frame, each of said holding members comprising a base part, a removable jaw adapted to be fixed on the end of said base part, and a second jaw supported on said base part inwardly of said first jaw and adjustable toward and away from said first jaw, means for locking said movable aw in any desired position, and means operatively connected to said holding members adapted to shift said members toward and away from each other, for the purpose specified.

In a device of the class described, the combination of a supporting frame, a plurality of holding members slidablv mounted on said frame, each of said holding members comprising a base part, a removable jaw adapted to be fixed on the end of said base part, and a second jaw supported on said base part inwardly of said first jaw and adjustable toward and away from said first jaw, said first jaw being adapted to be shifted into and out -of a position to co-act with said movable jaw, and means operatively connected to said holding members adapted to shift said members toward and away from. each other, for the purpose specified.

(3. In a device of the class described, the combination of a supporting frame, com prising arms disposed at right angles, bars slidably mounted on one pair of opposed arms at opposite sides of and parallel with said other arms, holding. members mounted on said bars and said other arms and each comprising a pair of jaws disposed in substantially parallel planes, and means for rotating the jaws carried by the holding members mounted on said other arms out of parallel position with the other said jaws, for the purpose specified.

7. In a device of the class described, the combination of a supporting frame, comprising arms disposed at right angles, bars mounted on one pair of opposed arms at opposite sides of and parallel with the other pair of said arms, holding members mounted on said bars at opposite sides of said opposed arms and each comprising a pair of jaws rigidly supported on a base part, other holding members mounted on said other arms at opposite sides of said opposed arms and each comprising a pair of jaws rotatably mounted on a transverse axis on a base part, and means adapted to cause a partial rotation of said other jaws, for the purpose specified.

S. In a device of the class described, the combination of a supporting frame, comprising arms disposed at right angles, bars mounted (11 one pair of opposed arms at opposite sides of and parallel with the other pair of said arms, holding members mounted on said bars at opposite sides of said opposed arms and each comprising a pair of jaws rigidly supported on a base part, other holding members mounted on said other arms at opposite sides of said opposed arms and each comprising a pair of jaws rotatably mounted on a transverse axis on a base part, means adapted to cause a partial rotation of said other jaws, and means for causing the inward movement of said jaws during said partial rotation thereof, for the purpose specified.

9. In a device of the class described, the cembination of a supporting frame, comprising arms disposed at right angles, bars mounted (:11 one pair of opposed arms at opposite sides of and parallel witlrthe other pair of said arnts, holding members mounted on said bars at opposite sides of said opposed arms and each comprising a pair of jaws rigidly supported on a base part, other holding members mounted on said other arms at opposite sides of said opposed arms and each comprising a pair of jaws rotatably mounted on a transverse axis on a base part, means adapted to cause a partial rotation of said other jaws, coacting shoulders adapted to locate said jaws in alined position with the aws carried by said first holding members, and means normally urgi ing said jaws into said alined position, for the purpose specified.

10. In a device of the class described, the combination of a supporting frame, com prising arms disposed at right angles, bars mounted on one pair of opposed arms at opposite sides of and parallel with the other pair of said arms, holding members mounted on said bars at opposite sides of said opposed arms and each comprising a pair of jaws rigidly supported on a base part, other holding members mounted on said other arms at opposite sides of said opposed arms and each comprising a pair of jaws rotatably mounted on a transverse axis on a base part, means adapted to cause a partial rotation of said other aws, means normally urging said jaws into alined position with the jaws carried by said first holding members, and means for locking said jaws in said normal position, for the purpose specified.

11. In a device of the class described, the combination of a supporting frame, comprising arms disposed at right angles, bars mounted on one pair of opposed arms at opposite sides of other said arms, holding members each comprising abase part slidablv mounted on said bars at opposite sides of said opposed arms, and having a pair of jaws mounted thereon, other holding members each comprising a base part slidably mounted on said other arms at opposite sides of said opposed arms, and having a transversely disposed shaft rotatably mounted thereon carrying a pair of jaws, a transversely disposed shaft rotatably mounted on said frame and adapted to have telescoping engagement with shafts mounted on said base parts and splined thereto, means operativoly connected to the base parts carried by said bars and said other arms adapted to shift said parts toward and a *ay from each other, and means for rotating the said second shaft, for the purpose specified.

Signed at Chicago this 11th day of March MAURICE J. CLARK lVitn esses Prnmr B. \Voonwon'rn, EDWIN PHELPS.

each. by addressing the Commissioner of Patents.

Washington. D. C. 

